I have a 2013 Escape 1.6L Eco Boost. I get a DTC of P0303, misfire on cylinder 3. I have tried swapping the coils from cylinder 4 to cylinder 3. Problem stayed with #3 . Replaced all the spark plugs and gapped them at .30. Problem still on #3 . I then swapped the fuel injectors from #3 to #4 . Problem stayed on #3 . This is where I get lost. It's not the coil, fuel injector, or spark plugs. Began tracing the wiring harness from the fuel injector back towards the PCM/ECU(whatever you wanna call it). Checked the wiring with a multimeter. Wiring is good as far back as I can follow it visually. Not sure where the PCM is located so I can't check it from there. I need ideas other than take it to the dealer as I'm not paying them 100 bucks to plug a code reader up to tell me what I already know. Thank you in advance for any further information you may be able to provide.